[U-Boot] [PATCH] board/t2080rdb: reset CS4315 PHY

[Shengzhou Liu]

CS4315 PHY doesn't phy reset by software, it needs to
reset it by hardware reset via CPLD control.

Signed-off-by: Shengzhou Liu <Shengzhou.Liu at freescale.com>
---
 board/freescale/t208xrdb/cpld.h     | 3 +++
 board/freescale/t208xrdb/t208xrdb.c | 7 +++++++
 2 files changed, 10 insertions(+)

diff --git a/board/freescale/t208xrdb/cpld.h b/board/freescale/t208xrdb/cpld.h
index 3f15338..9bd5247 100644
--- a/board/freescale/t208xrdb/cpld.h
+++ b/board/freescale/t208xrdb/cpld.h
@@ -40,3 +40,6 @@ void cpld_write(unsigned int reg, u8 value);
 #define CPLD_LBMAP_RESET	0xFF
 #define CPLD_LBMAP_SHIFT	0x03
 #define CPLD_BOOT_SEL		0x80
+
+/* RSTCON Register */
+#define CPLD_RSTCON_EDC_RST	0x04
diff --git a/board/freescale/t208xrdb/t208xrdb.c b/board/freescale/t208xrdb/t208xrdb.c
index ad393df..35c6efe 100644
--- a/board/freescale/t208xrdb/t208xrdb.c
+++ b/board/freescale/t208xrdb/t208xrdb.c
@@ -107,6 +107,13 @@ unsigned long get_board_ddr_clk(void)
 
 int misc_init_r(void)
 {
+	int reg;
+
+	/* Reset CS4315 PHY */
+	reg = CPLD_READ(reset_ctl);
+	reg |= CPLD_RSTCON_EDC_RST;
+	CPLD_WRITE(reset_ctl, reg);
+
 	return 0;
 }
 
-- 
2.1.0.27.g96db324